The 3M™ Littmann Master Classic II stethoscope is a high performance product. The excellent acoustic sensitivity of a tunable diaphragm is the hallmark of this superior single-sided stethoscope. Award-winning design combines high performance with portable convenience. This innovative stethoscope has a patented single-sided Master chestpiece. This allows monitoring of both high and low frequency sounds without turning the chestpiece over. The streamlined design is comfortable, durable and portable. Winner of an "Industrial Design Excellence Award" in 1996. Used by: • General practitioners • Paramedics